Note: This version of the VDT (1.11.0) is no longer supported. Feel free to look through the documentation and install it, but we cannot guarantee support for it. The current stable release is 2.0.0.
In VDT 1.11.0, we use Globus 4.0.8 as a base. However, we modify Globus with several patches. Below we describe a few particularly notable patches.
Complete list of Globus 4.0.8 patches in VDT 1.11.0
One of the patches will tell the jobmanagers to set $GLOBUS_LOCATION
for the jobs to a new location: $OSG_GRID/globus. This is only done
when $OSG_GRID is defined, so it will only affect Open Science Grid (OSG)
installations, unless you happen to define $OSG_GRID.
The reason for this is because we want jobs to know $GLOBUS_LOCATION,
but it is often in a different location on the worker nodes. In an OSG
site, this location is defined by $OSG_GRID, so we set
$GLOBUS_LOCATION as a convenience.
Note that $OSG_GRID is set by OSG using the
Job-Environment
modification.
Some of the patches enable a simple gatekeeper accounting mechanism that works with pre-web services GRAM (a.k.a GRAM 2). Read more details